| Hi Mike. For those like my self that have a digital camera that does not go below 100 ASA/ISO, here are the numbers for 1/500th second and 100 ASA/ISO: F/2.8 = 250fc, f/4.0=500fc, f/5.6=1000fc, f/8=2000fc, f/11=4000fc, f/16=8000fc. It looks like our data differs a little bit. Not sure why. I got this from a table that used to be on orchidlady.com, but it isn't there any more.
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Cynthia
Prescott Orchid Society  |